I have a dynamically-generated iframe whose src comes from a separate page so when the form on the outer page is submitted, the data posts to the iframe.

I want to use ScriptManager.RegisterDataItem on the child page so that I can check the page's dataItems using the PageRequestManager methods on callback/loading. Problem is, since it's not a cross-page request, there is no previouspage property to look at. Is there any way I can get a reference to the outer page from the inner page server-side?